USB hub



FIG. 1 is a front, left and top perspective view of a USB hub, showing my design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a left side elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the USB hub that form no part of the claimed design. 

CLAIM The ornamental design for a USB hub, as shown and described. 